›› 2009, Vol. 17 ›› Issue (1): 88-92.DOI: 10.11733/j.issn.1007-0435.2009.01.018

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Effect of Neotyphodium Endophyte Infection on Salt Tolerance of Hordeum brevisubulatum(Trin.) Link

WANG Zheng-feng, LI Chun-jie, JIN Wen-jin, NAN Zhi-biao   

  1. College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, Gansu Province 730020, China
  • Received:2008-03-31 Revised:2008-09-09 Online:2009-02-15 Published:2009-02-15

内生真菌对野大麦耐盐性的影响

王正凤, 李春杰, 金文进, 南志标   

  1. 兰州大学草地农业科技学院, 甘肃, 兰州, 730020
  • 通讯作者: 李春杰,Author for correspondence,E-mail:chunjie@lzu.edu.cn
  • 作者简介:王正凤(1983- ),女,汉族,甘肃靖远人,硕士研究生,研究方向为禾草-内生真菌共生体
  • 基金资助:
    国家“973”项目(2007CB108902);国家自然科学基金项目(30771531);甘肃省中青年科技基金项目(3ZS041-A25-003)

Abstract: The outside pot experiment was performed and the growth and physiological characteristics of Neotyphodium endophyte-infected(E+) and endophyte-free(E-) wild barley(Hordeum brevisubulatum(Trin.) Link) were observed under different NaCl concentrations(0,100,200,and 300 mmol L-1).The results show that the tiller number,biomass accumulation,contents of soluble sugar and proline,and activity of SOD isozyme of E+ plants were significantly higher(P<0.05),but malondialdehyde content significantly lower(P<0.05),than those of E-plants.In conclusion,endophyte infection improved the salt tolerance of wild barley under outside pot conditions.

Key words: Wild barley, Endophyte, Salt tolerance

摘要: 在室外盆栽条件下,通过比较带内生真菌(E+)与不带内生真菌(E-)的野大麦(Hordeum brevisubulatum(Trin.)Link)在不同NaCl浓度(0、100、200、300 mmolL-1)条件下的生长与生理指标变化,分析了内生真菌对宿主野大麦耐盐性的影响。结果表明:在高盐浓度(300 mmol L-1)下内生真菌显著提高了宿主野大麦分蘖能力、生物量积累、可溶性糖含量、脯氨酸含量、SOD酶活性(P<0.05),同时降低了丙二醛含量,说明内生真菌的侵入有利于提高宿主野大麦在室外盆栽条件下的耐盐性。

关键词: 野大麦, 内生真菌, 耐盐性

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